[Event "GUA-ch Mayor"]
[Site "Guatemala City"]
[Date "1990.??.??"]
[Round "?"]
[White "Deras Diaz, Gonzalo"]
[Black "Castillo Melenes, Otto Rene"]
[Result "1-0"]
[ECO "A28"]
[PlyCount "99"]
[EventDate "1990.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GUA"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e4 d6 5. g3 Bg4 6. Bg2 Qd7 7. h3 Bh5 8. Rb1 Be7 9. d3 a5 10. a3 Nd8 11. Be3 Ne6 12. 0-0 c6 13. Na4 Ra6 14. b4 axb4 15. axb4 b5 16. Nc3 0-0 17. g4 Bg6 18. Qd2 bxc4 19. dxc4 Qc8 20. Nh4 Rd8 21. Nf5 Bf8 22. b5 Ra8 23. Rfd1 c5 24. Ra1 Nd4 25. Qb2 Qb7 26. Rxa8 Rxa8 27. Ra1 Nd7 28. Nd5 Rxa1+ 29. Qxa1 Nb8 30. Qa5 f6 31. Qd8 Ne6 32. Nde7+ Kh8 33. Nxg6+ hxg6 34. Qe8 gxf5 35. exf5 Qd7 36. Qxb8 Nd8 37. b6 Kh7 38. b7 Nxb7 39. Qxb7 Qxb7 40. Bxb7 Be7 41. Be4 Kg8 42. h4 Bd8 43. Kg2 Kf7 44. g5 fxg5 45. hxg5 Ba5 46. Kf3 Bc3 47. Kg4 Ba5 48. Bd5+ Kf8 49. Kh5 Bd8 50. Kg6 1-0

[Event "GUA-ch Mayor"]
[Site "Guatemala City"]
[Date "1990.??.??"]
[Round "?"]
[White "Deras Diaz, Gonzalo"]
[Black "Juarez Flores, Gustavo Enrique"]
[Result "0-1"]
[ECO "A24"]
[BlackElo "2250"]
[PlyCount "102"]
[EventDate "1990.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GUA"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e4 d6 5. d3 g6 6. g3 Bg7 7. Bg2 0-0 8. 0-0 Nh5 9. Nd5 h6 10. Nh4 Nd4 11. Be3 c6 12. Nc3 Nf4 13. Bxd4 exd4 14. Ne2 Nxg2 15. Kxg2 Kh7 16. f4 f5 17. exf5 gxf5 18. Ng1 Bf6 19. Ngf3 c5 20. Re1 Bd7 21. Kf2 Bxh4 22. Nxh4 Qf6 23. Qh5 Rae8 24. Rxe8 Rxe8 25. Re1 Re3 26. Qd1 b5 27. b3 Qe6 28. Qd2 Rxe1 29. Qxe1 b4 30. Qxe6 Bxe6 31. h3 Bd7 32. Ke2 Kg7 33. Kf3 Bc6+ 34. Ke2 Bd7 35. Kf3 Bc6+ 36. Ke2 Kf6 37. g4 fxg4 38. hxg4 a5 39. Kd2 a4 40. Ke1 a3 41. Kd2 Ba4 42. Kc2 Bd7 43. f5 Kg5 44. Ng6 Kxg4 45. f6 Be6 46. Nh8 h5 47. f7 Bxf7 48. Nxf7 h4 49. Nxd6 h3 50. Ne4 h2 51. Kd2 Kf3 0-1

[Event "GUA-ch Mayor"]
[Site "Guatemala City"]
[Date "1990.??.??"]
[Round "?"]
[White "Deras Diaz, Gonzalo"]
[Black "Juarez Flores, Roberto Alfonso"]
[Result "0-1"]
[ECO "A10"]
[BlackElo "2210"]
[PlyCount "64"]
[EventDate "1990.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GUA"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. Nf3 f5 2. c4 Nf6 3. g3 e6 4. Bg2 d5 5. 0-0 c6 6. b3 Bd6 7. Bb2 0-0 8. d3 Nbd7 9. Nbd2 f4 10. d4 Qe8 11. e4 Nxe4 12. Ne5 Nxd2 13. Qxd2 Bxe5 14. dxe5 f3 15. Bh3 Nc5 16. Qg5 Ne4 17. Qh4 h5 18. Bc1 Bd7 19. Be3 g6 20. Rac1 Rf7 21. Rfd1 Rg7 22. Bg5 Qf7 23. cxd5 exd5 24. Bxd7 Qxd7 25. Bf6 Rf7 26. Rd4 Qf5 27. Re1 Re8 28. Rf1 Rh7 29. h3 g5 30. g4 hxg4 31. Qxg4 Qxg4+ 32. hxg4 Rh4 0-1

[Event "GUA-ch Mayor"]
[Site "Guatemala City"]
[Date "1990.??.??"]
[Round "?"]
[White "Guevara Castillo, Francisco Javier"]
[Black "Deras Diaz, Gonzalo"]
[Result "1-0"]
[ECO "A40"]
[PlyCount "79"]
[EventDate "1990.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GUA"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. d4 g6 2. c4 Bg7 3. Nc3 c5 4. Nf3 cxd4 5. Nxd4 b6 6. e4 Bb7 7. Be3 Nf6 8. f3 d6 9. Qd2 0-0 10. h4 h5 11. 0-0-0 Nbd7 12. g4 a6 13. gxh5 Nxh5 14. Bd3 b5 15. f4 bxc4 16. Bxc4 Rc8 17. Bd3 Nc5 18. Kb1 e6 19. Rhg1 Nxd3 20. Qxd3 Qxh4 21. f5 Rxc3 22. Qxc3 Qxe4+ 23. Ka1 exf5 24. Rge1 f4 25. Bg1 Qg2 26. Rd2 Qd5 27. Qb4 Bxd4 28. Rxd4 Qf3 29. Qxd6 Qg3 30. Rdd1 f3 31. Qb6 Ba8 32. Bf2 Qb8 33. Qxa6 Bb7 34. Qb6 Qa8 35. Re5 Nf4 36. Rh1 Bd5 37. a3 Be6 38. Qd4 Qb8 39. Rh8+ Kxh8 40. Rh5+ 1-0

[Event "GUA-ch Mayor"]
[Site "Guatemala City"]
[Date "1990.??.??"]
[Round "?"]
[White "Juarez Flores, Carlos Armando"]
[Black "Deras Diaz, Gonzalo"]
[Result "1-0"]
[ECO "C41"]
[WhiteElo "2375"]
[PlyCount "49"]
[EventDate "1990.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GUA"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Nc3 exd4 5. Qxd4 Be7 6. Bg5 0-0 7. 0-0-0 Nc6 8. Qd2 Be6 9. h4 Ng4 10. Nd5 a6 11. Nxe7+ Nxe7 12. Nd4 Qd7 13. f3 f6 14. b3 Bf7 15. fxg4 fxg5 16. Qxg5 Nc6 17. Nf5 Be6 18. h5 Rae8 19. h6 Bxf5 20. gxf5 Ne5 21. hxg7 Qxg7 22. Qh4 Nf7 23. Rd3 Qg5+ 24. Qxg5+ Nxg5 25. Rg3 1-0

[Event "GUA-ch Mayor"]
[Site "Guatemala City"]
[Date "1990.??.??"]
[Round "?"]
[White "Lopez, Amilcar Eduardo"]
[Black "Deras Diaz, Gonzalo"]
[Result "0-1"]
[ECO "E16"]
[PlyCount "138"]
[EventDate "1990.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GUA"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Nd2 0-0 5. Ngf3 b6 6. Bg2 Bb7 7. 0-0 Bxd2 8. Qxd2 d6 9. b3 Nbd7 10. Bb2 a5 11. Qc2 Qe7 12. Nd2 Bxg2 13. Kxg2 e5 14. e3 Rae8 15. a3 e4 16. b4 Ra8 17. Bc3 a4 18. b5 Qe6 19. Bb4 Qf5 20. Rac1 Rfe8 21. f3 Qg5 22. Rce1 exf3+ 23. Rxf3 Re6 24. e4 Rae8 25. Qxa4 Qg6 26. e5 dxe5 27. d5 e4 28. dxe6 exf3+ 29. Nxf3 fxe6 30. Qb3 Kh8 31. Qe3 e5 32. Nh4 Qc2+ 33. Qe2 Qb3 34. Nf5 Qa4 35. Rd1 Qa8+ 36. Kg1 e4 37. Qe3 Ne5 38. Bc3 Nf3+ 39. Kg2 Qc8 40. Nxg7 Kxg7 41. Bxf6+ Kxf6 42. Qh6+ Kf7 43. Qxh7+ Kf6 44. Rd7 Ne5 45. Qh6+ Kf5 46. Rg7 e3 47. Qxe3 Qa8+ 48. Kf1 Qh1+ 49. Qg1 Qxg1+ 50. Kxg1 Rc8 51. h4 Nxc4 52. Rg5+ Kf6 53. a4 Nb2 54. Rg4 Ra8 55. h5 Rxa4 56. Rg6+ Kf7 57. Rc6 Rc4 58. Rg6 Nd3 59. Kg2 Ne5 60. Rg5 Rc2+ 61. Kf1 Rc5 62. h6 Ng6 63. Rg4 Rxb5 64. Rd4 Re5 65. g4 c5 66. Rd7+ Re7 67. Rd6 b5 68. h7 Nh8 69. Rd5 Rc7 0-1

[Event "GUA-ch Mayor"]
[Site "Guatemala City"]
[Date "1990.??.??"]
[Round "?"]
[White "Mejia Godinez, Nery Amilear"]
[Black "Deras Diaz, Gonzalo"]
[Result "0-1"]
[ECO "E11"]
[PlyCount "27"]
[EventDate "1990.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GUA"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 a5 5. e3 0-0 6. Bd3 d6 7. Nc3 Qe7 8. 0-0 e5 9. Ne1 e4 10. Be2 Nc6 11. Nc2 Bxc3 12. Bxc3 d5 13. a3 Be6 14. b3 0-1

[Event "GUA-ch Mayor"]
[Site "Guatemala City"]
[Date "1990.??.??"]
[Round "?"]
[White "Reyes Najera, Carlos Antonio"]
[Black "Deras Diaz, Gonzalo"]
[Result "1-0"]
[ECO "B08"]
[WhiteElo "2230"]
[PlyCount "73"]
[EventDate "1990.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GUA"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. h3 Nf6 5. Nc3 0-0 6. Be2 c6 7. a4 Qc7 8. 0-0 e5 9. Re1 exd4 10. Nxd4 Re8 11. Bf1 a5 12. Bf4 Nbd7 13. Qd2 Nc5 14. f3 Nfd7 15. Nde2 Ne5 16. b3 Be6 17. Rad1 Rad8 18. Bg5 f6 19. Be3 Bc8 20. f4 Nf7 21. Ng3 Nd7 22. Bd4 Bh6 23. Be3 Bg7 24. Bc4 Nb6 25. Bf1 Nd7 26. Qf2 f5 27. Bd4 Bxd4 28. Qxd4 Qb6 29. Qxb6 Nxb6 30. exf5 Bxf5 31. Nxf5 gxf5 32. Bd3 Nh6 33. Kf2 Kf7 34. Be2 Rg8 35. Bh5+ Kf6 36. Re2 Nc8 37. Rf1 1-0

[Event "Olympiad-25"]
[Site "Luzern"]
[Date "1982.11.13"]
[Round "13"]
[White "Deras Diaz, Gonzalo"]
[Black "Izquierdo, Daniel"]
[Result "1/2-1/2"]
[ECO "A08"]
[PlyCount "160"]
[EventDate "1982.10.30"]
[EventType "team-swiss"]
[EventRounds "14"]
[EventCountry "SUI"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]
[WhiteTeam "Guatemala"]
[BlackTeam "Uruguay"]
[WhiteTeamCountry "GUA"]
[BlackTeamCountry "URU"]

1. g3 c5 2. Bg2 g6 3. Nc3 Nc6 4. d3 Bg7 5. a3 e6 6. Nf3 Nge7 7. 0-0 0-0 8. Rb1 d5 9. Bd2 Rb8 10. b4 cxb4 11. axb4 b5 12. e4 a5 13. bxa5 b4 14. Ne2 Qxa5 15. Qc1 dxe4 16. dxe4 Ba6 17. Re1 Qa3 18. Bh6 Qxc1 19. Bxc1 Bc4 20. Bb2 Ra8 21. Bxg7 Kxg7 22. Ned4 Ra2 23. Nxc6 Nxc6 24. Rec1 Rd8 25. Bf1 Bxf1 26. Kxf1 Nd4 27. Ne1 Rb8 28. c3 Ne2 29. Rc2 Rxc2 30. Nxc2 Nxc3 31. Rxb4 Rxb4 32. Nxb4 Nxe4 33. Ke2 Kf6 34. Ke3 Nc3 35. Nd3 Kf5 36. h3 e5 37. Nc5 h5 38. Nb7 Nb5 39. Nc5 Nd6 40. Kf3 Kf6 41. Ke3 Kf5 42. f4 exf4+ 43. gxf4 Nc4+ 44. Kf3 Na3 45. Ne4 Nb5 46. Ng3+ Kf6 47. Ne4+ Ke7 48. Ng3 Nd6 49. Ne2 Ke6 50. Nc3 Nf5 51. Ne4 Kd5 52. Ng5 Nd6 53. f5 gxf5 54. Kf4 f6 55. Nf3 Ke6 56. Nd4+ Kf7 57. Nf3 Ne4 58. Kxf5 Nf2 59. h4 Ng4 60. Nd4 Nh6+ 61. Kf4 Ng8 62. Nf5 Ne7 63. Ng3 Kg6 64. Ke4 f5+ 65. Ke5 Nc6+ 66. Kf4 Nd4 67. Ke3 Ne6 68. Ne2 Kf6 69. Kf3 Ke5 70. Ng3 Ng7 71. Ne2 Ne8 72. Nf4 Ng7 73. Ne2 Ne6 74. Ng3 Nf4 75. Ke3 Nd5+ 76. Kf3 Nf6 77. Ne2 Ne4 78. Nf4 Nf6 79. Ne2 Ke6 80. Ng3 Ke5 1/2-1/2

[Event "Olympiad-25"]
[Site "Luzern"]
[Date "1982.11.12"]
[Round "12"]
[White "Bogda, Alejandro"]
[Black "Deras Diaz, Gonzalo"]
[Result "0-1"]
[ECO "B06"]
[PlyCount "128"]
[EventDate "1982.10.30"]
[EventType "team-swiss"]
[EventRounds "14"]
[EventCountry "SUI"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]
[WhiteTeam "Paraguay"]
[BlackTeam "Guatemala"]
[WhiteTeamCountry "PAR"]
[BlackTeamCountry "GUA"]

1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. f4 c6 5. a4 Qb6 6. Nf3 Bg4 7. a5 Qc7 8. Be2 Nf6 9. e5 Nd5 10. Ne4 0-0 11. 0-0 f6 12. c4 Nb4 13. Bd2 N8a6 14. exf6 exf6 15. Nf2 Bf5 16. Nh4 Bc2 17. Qc1 Rfe8 18. Bd1 Bxd1 19. Qxd1 f5 20. Nf3 Re7 21. Qb3 c5 22. dxc5 dxc5 23. Ne5 Nc6 24. Nxc6 Qxc6 25. Bc3 Re6 26. Qc2 Rae8 27. Bxg7 Nb4 28. Qd2 Kxg7 29. Rae1 Nc2 30. Rd1 Nd4 31. b4 b6 32. axb6 axb6 33. Ra1 Qd6 34. Qb2 Kg8 35. bxc5 bxc5 36. Qb7 R6e7 37. Qd5+ Qxd5 38. cxd5 Ne2+ 39. Kh1 Nxf4 40. Rad1 Rd7 41. Nd3 Nxd3 42. Rxd3 c4 43. Rd4 Re4 44. Rfd1 Rxd4 45. Rxd4 c3 46. Kg1 Rc7 47. Rd1 c2 48. Rc1 Kf7 49. Kf2 Ke7 50. Ke3 Kd6 51. Kd3 Kxd5 52. Rxc2 Rxc2 53. Kxc2 Ke4 54. Kd2 f4 55. Ke2 g5 56. h3 h5 57. Kf2 g4 58. hxg4 hxg4 59. Ke2 g3 60. Ke1 Ke3 61. Kf1 Kd2 62. Kg1 Ke2 63. Kh1 f3 64. gxf3 Kf2 0-1

[Event "Olympiad-25"]
[Site "Luzern"]
[Date "1982.11.08"]
[Round "9"]
[White "Deras Diaz, Gonzalo"]
[Black "Ochoa, Fabio"]
[Result "0-1"]
[ECO "D74"]
[PlyCount "78"]
[EventDate "1982.10.30"]
[EventType "team-swiss"]
[EventRounds "14"]
[EventCountry "SUI"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]
[WhiteTeam "Guatemala"]
[BlackTeam "Puerto Rico"]
[WhiteTeamCountry "GUA"]
[BlackTeamCountry "PUR"]

1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 0-0 5. Nf3 c6 6. d4 d5 7. cxd5 Nxd5 8. 0-0 Nxc3 9. bxc3 Nd7 10. a4 a5 11. Rb1 Nf6 12. Nd2 Nd5 13. Qc2 e5 14. e4 exd4 15. exd5 dxc3 16. Nb3 cxd5 17. Nc5 Bf5 18. Nd3 Qc7 19. Bf4 Qc4 20. Rfd1 Ra7 21. h3 Re8 22. Rb5 d4 23. g4 Bd7 24. Bd5 Qc8 25. Rc5 Bc6 26. Bxc6 bxc6 27. Ne5 Re6 28. Rxd4 Rae7 29. Nf3 Bxd4 30. Nxd4 Re1+ 31. Kh2 Qa6 32. Rxc6 Qf1 33. Kg3 Re8 34. Rxc3 h5 35. Rc8 Qg1+ 36. Kh4 Rxc8 37. Qxc8+ Kg7 38. Qc3 Qxf2+ 39. Bg3 Qf6+ 0-1

[Event "Olympiad-25"]
[Site "Luzern"]
[Date "1982.11.07"]
[Round "8"]
[White "Bammoune, Abd'Ennacer"]
[Black "Deras Diaz, Gonzalo"]
[Result "1/2-1/2"]
[ECO "B06"]
[PlyCount "80"]
[EventDate "1982.10.30"]
[EventType "team-swiss"]
[EventRounds "14"]
[EventCountry "SUI"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]
[WhiteTeam "Algeria"]
[BlackTeam "Guatemala"]
[WhiteTeamCountry "ALG"]
[BlackTeamCountry "GUA"]

1. e4 g6 2. d4 Bg7 3. f4 d6 4. Nf3 c5 5. c3 cxd4 6. cxd4 Bg4 7. Be2 Nf6 8. Nc3 0-0 9. 0-0 Nc6 10. d5 Nb4 11. Be3 Na6 12. Bxa6 bxa6 13. h3 Bxf3 14. Qxf3 Qa5 15. a3 Nd7 16. Qf2 Rab8 17. Bxa7 Rxb2 18. Qxb2 Bxc3 19. Qc2 Bxa1 20. Rxa1 Nf6 21. Rb1 Qxa3 22. Rb7 Qa1+ 23. Kh2 Re8 24. Rb1 Qa3 25. Bd4 Nh5 26. Rb3 Qa5 27. Qc6 Rf8 28. Rf3 Qb4 29. Qb6 Rb8 30. Qc7 Rf8 31. Qc3 Qxc3 32. Bxc3 Rc8 33. Ba1 Rc1 34. Bc3 Rc2 35. e5 Nxf4 36. exd6 exd6 37. Rxf4 Rxc3 38. Rf6 Kf8 39. Rxd6 Rd3 40. Rxa6 Rxd5 1/2-1/2

[Event "Olympiad-25"]
[Site "Luzern"]
[Date "1982.11.05"]
[Round "6"]
[White "Deras Diaz, Gonzalo"]
[Black "Belkhodja, Slim"]
[Result "1/2-1/2"]
[ECO "B25"]
[PlyCount "75"]
[EventDate "1982.10.30"]
[EventType "team-swiss"]
[EventRounds "14"]
[EventCountry "SUI"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]
[WhiteTeam "Guatemala"]
[BlackTeam "Tunisia"]
[WhiteTeamCountry "GUA"]
[BlackTeamCountry "TUN"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. f4 Nh6 7. Nf3 f5 8. 0-0 0-0 9. h3 Rb8 10. Be3 Nd4 11. Qd2 b5 12. Rae1 b4 13. Nd1 Nxf3+ 14. Rxf3 Bb7 15. Rff1 Kh8 16. exf5 Nxf5 17. Bxb7 Rxb7 18. Qg2 Rc7 19. Bf2 e5 20. c3 exf4 21. gxf4 Rcf7 22. cxb4 cxb4 23. Qe4 Qa5 24. Ne3 Nxe3 25. Bxe3 d5 26. Qe6 Qxa2 27. Bc5 Rf6 28. Qe3 Rg8 29. Ra1 d4 30. Bxd4 Qe6 31. Rxa7 Qxe3+ 32. Bxe3 Rd6 33. d4 Re8 34. Rf3 Bxd4 35. Bxd4+ Rxd4 36. Kf2 Rd2+ 37. Kg3 Rxb2 38. Rd3 1/2-1/2

[Event "GUA-ch Maestros1"]
[Site "Guatemala City"]
[Date "1982.??.??"]
[Round "5"]
[White "Batres O, Francisco"]
[Black "Deras Diaz, Gonzalo"]
[Result "1/2-1/2"]
[ECO "B40"]
[PlyCount "61"]
[EventDate "1982.??.??"]
[EventType "tourn"]
[EventRounds "22"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. Bd3 e5 7. Nf5 0-0 8. Ne3 d6 9. 0-0 Be6 10. Ncd5 Bxd5 11. exd5 e4 12. Bxe4 Nxe4 13. Qd4 Bc5 14. Qxe4 Re8 15. Qf4 Nd7 16. Bd2 Nf6 17. Bc3 Ne4 18. Rae1 Nxc3 19. bxc3 Qa5 20. Qc4 b5 21. Qd3 Qb6 22. Re2 a6 23. Rfe1 Qa5 24. Nf5 Rxe2 25. Qxe2 h6 26. Qd3 Qxa2 27. Qg3 g6 28. Nxh6+ Kg7 29. Nf5+ Kg8 30. Nh6+ Kg7 31. Nf5+ 1/2-1/2

[Event "GUA-ch Maestros1"]
[Site "Guatemala City"]
[Date "1982.??.??"]
[Round "11"]
[White "Batres O, Francisco"]
[Black "Deras Diaz, Gonzalo"]
[Result "1/2-1/2"]
[ECO "A26"]
[PlyCount "36"]
[EventDate "1982.??.??"]
[EventType "tourn"]
[EventRounds "22"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. Nf3 g6 2. c4 Bg7 3. Nc3 d6 4. g3 Nf6 5. Bg2 0-0 6. 0-0 e5 7. d3 Nc6 8. Rb1 a5 9. a3 Bf5 10. e4 Bg4 11. h3 Bxf3 12. Bxf3 Nd4 13. Bg2 c6 14. b4 axb4 15. axb4 Ra7 16. Be3 Nd7 17. Ne2 Ra2 18. Nc1 Ra3 1/2-1/2

[Event "GUA-ch Maestros1"]
[Site "Guatemala City"]
[Date "1982.??.??"]
[Round "7"]
[White "De Leon, Rudy"]
[Black "Deras Diaz, Gonzalo"]
[Result "0-1"]
[ECO "B78"]
[PlyCount "66"]
[EventDate "1982.??.??"]
[EventType "tourn"]
[EventRounds "22"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Bc4 Bg7 7. Bb3 0-0 8. f3 Nc6 9. Be3 Bd7 10. Qd2 Rc8 11. 0-0-0 Ne5 12. h4 Nc4 13. Bxc4 Rxc4 14. h5 Nxh5 15. g4 Nf6 16. Bh6 Nxe4 17. Nxe4 Rxd4 18. Qh2 Be5 19. Bf4 Bxf4+ 20. Qxf4 Rxd1+ 21. Kxd1 f6 22. Qh6 Rf7 23. Qe3 Qa5 24. Qb3 Bc6 25. Nd2 Qd5 26. Qxd5 Bxd5 27. c4 Bc6 28. Kc2 d5 29. c5 e5 30. Re1 Re7 31. b3 f5 32. g5 f4 33. Kc3 Kf7 0-1

[Event "GUA-ch Maestros1"]
[Site "Guatemala City"]
[Date "1982.??.??"]
[Round "10"]
[White "Deras Diaz, Gonzalo"]
[Black "Barreno Anleu, Hugo Augusto"]
[Result "1/2-1/2"]
[ECO "C84"]
[PlyCount "40"]
[EventDate "1982.??.??"]
[EventType "tourn"]
[EventRounds "22"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. d4 exd4 7. e5 Ne4 8. Nxd4 Nxd4 9. Qxd4 Nc5 10. Qg4 Nxa4 11. Qxg7 Rf8 12. Bh6 Nc5 13. Qxh7 d6 14. Nc3 Be6 15. Bxf8 Bxf8 16. b4 Nd7 17. exd6 Bxd6 18. Qh8+ Bf8 19. Qd4 Qf6 20. Rad1 Bg7 1/2-1/2

[Event "GUA-ch Maestros1"]
[Site "Guatemala City"]
[Date "1982.??.??"]
[Round "16"]
[White "Deras Diaz, Gonzalo"]
[Black "Batres O, Francisco"]
[Result "1/2-1/2"]
[ECO "B91"]
[PlyCount "21"]
[EventDate "1982.??.??"]
[EventType "tourn"]
[EventRounds "22"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 g6 7. Bg2 Bg7 8. 0-0 0-0 9. h3 Nc6 10. Nde2 Be6 11. Be3 1/2-1/2

[Event "GUA-ch Maestros1"]
[Site "Guatemala City"]
[Date "1982.??.??"]
[Round "18"]
[White "Deras Diaz, Gonzalo"]
[Black "De Leon, Rudy"]
[Result "1-0"]
[ECO "B26"]
[PlyCount "69"]
[EventDate "1982.??.??"]
[EventType "tourn"]
[EventRounds "22"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nc6 3. d3 d6 4. g3 g6 5. Bg2 Bg7 6. f4 Nge7 7. Nf3 0-0 8. e4 Nd4 9. Be3 c5 10. 0-0 Nec6 11. Qd2 Rb8 12. h3 a6 13. g4 f6 14. fxe5 dxe5 15. Nd5 Be6 16. Nxd4 Nxd4 17. Rf2 Bxd5 18. cxd5 Qd6 19. Raf1 b5 20. h4 Rb7 21. Bh3 Rfb8 22. b3 b4 23. Bxd4 exd4 24. Qf4 Qd7 25. Qg3 g5 26. Rf5 h6 27. Bg2 Re8 28. R1f3 Re5 29. Qh3 Rxf5 30. Rxf5 Bf8 31. Qf3 Kg7 32. hxg5 hxg5 33. e5 fxe5 34. Rxg5+ Kh8 35. Qh3+ 1-0

[Event "GUA-ch Maestros1"]
[Site "Guatemala City"]
[Date "1982.??.??"]
[Round "12"]
[White "Deras Diaz, Gonzalo"]
[Black "Guila Morales, Max Alfonso"]
[Result "1-0"]
[ECO "C74"]
[PlyCount "73"]
[EventDate "1982.??.??"]
[EventType "tourn"]
[EventRounds "22"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 b5 5. Bb3 d6 6. c3 Na5 7. Bc2 c5 8. d4 Nc6 9. a3 Qc7 10. 0-0 g6 11. Nbd2 Bg7 12. dxc5 dxc5 13. Re1 Nge7 14. a4 Bb7 15. Nb3 Nd8 16. Be3 Ne6 17. Ng5 Nxg5 18. Bxg5 0-0 19. Qg4 b4 20. cxb4 cxb4 21. Rac1 Nc6 22. Be3 Nd4 23. Bd3 Qd6 24. Nc5 Bc6 25. Red1 h5 26. Qg3 Rfd8 27. Kh1 a5 28. Bg5 Rdc8 29. Bc4 Be8 30. Nb3 Bxa4 31. Rxd4 h4 32. Rxd6 hxg3 33. Nd2 Bf8 34. Rxg6+ Kh7 35. Rf6 Rxc4 36. Nxc4 Rc8 37. hxg3 1-0

[Event "GUA-ch Maestros1"]
[Site "Guatemala City"]
[Date "1982.??.??"]
[Round "16"]
[White "Deras Diaz, Gonzalo"]
[Black "Juarez Flores, Carlos Armando"]
[Result "0-1"]
[ECO "C10"]
[BlackElo "2295"]
[PlyCount "68"]
[EventDate "1982.??.??"]
[EventType "tourn"]
[EventRounds "22"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 e6 2. Nf3 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. d4 Ngf6 6. Bd3 Be7 7. 0-0 0-0 8. Qe2 b6 9. Nxf6+ Nxf6 10. Bg5 Bb7 11. Rad1 h6 12. Bh4 Qd5 13. c4 Qh5 14. d5 Rfe8 15. Bxf6 Bxf6 16. Rfe1 g6 17. Be4 exd5 18. cxd5 Re7 19. Qc4 Rd8 20. b3 Kg7 21. a4 Red7 22. d6 cxd6 23. Bxb7 Rxb7 24. Rd5 Rc7 25. Qxc7 Qxd5 26. b4 Qb3 27. Qxa7 Qxb4 28. h3 d5 29. Rc1 d4 30. Rc7 Qb3 31. Nd2 Qe6 32. Qb7 d3 33. g3 Bg5 34. f4 Bf6 0-1

[Event "GUA-ch Maestros1"]
[Site "Guatemala City"]
[Date "1982.??.??"]
[Round "4"]
[White "Deras Diaz, Gonzalo"]
[Black "Juarez Flores, Gustavo Enrique"]
[Result "1-0"]
[ECO "A25"]
[BlackElo "2275"]
[PlyCount "59"]
[EventDate "1982.??.??"]
[EventType "tourn"]
[EventRounds "22"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. c4 e5 2. g3 d6 3. Nc3 Nc6 4. Bg2 Be6 5. d3 Qd7 6. Rb1 Nge7 7. b4 d5 8. b5 Nd8 9. Qb3 dxc4 10. dxc4 Nf5 11. Nf3 f6 12. 0-0 Qf7 13. Rd1 Bxc4 14. Qa4 Bc5 15. b6+ c6 16. Ne4 Be7 17. Qxa7 Rc8 18. Bh3 g6 19. Nc3 e4 20. Nxe4 Bxe2 21. Re1 Bxf3 22. Bxf5 Bxe4 23. Bxe4 0-0 24. Bc2 c5 25. Bh6 Re8 26. Ba4 g5 27. Bd7 Qg6 28. Bxc8 Bf8 29. Bxf8 Rxf8 30. Bxb7 1-0

[Event "GUA-ch Maestros2"]
[Site "Guatemala City"]
[Date "1982.??.??"]
[Round "?"]
[White "Deras Diaz, Gonzalo"]
[Black "Juarez Flores, Gustavo Enrique"]
[Result "1/2-1/2"]
[ECO "A01"]
[BlackElo "2275"]
[PlyCount "80"]
[EventDate "1982.??.??"]
[EventType "tourn"]
[EventRounds "18"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. b3 e5 2. Bb2 Nc6 3. e3 d6 4. g3 f5 5. Bg2 Nf6 6. Ne2 g6 7. c4 Bg7 8. Nbc3 Ne7 9. d4 e4 10. 0-0 0-0 11. d5 Ng4 12. Qd2 Ne5 13. Nb5 g5 14. Nbd4 N7g6 15. f3 exf3 16. Bxf3 Nxf3+ 17. Nxf3 Bxb2 18. Qxb2 Qe7 19. Qd2 f4 20. exf4 gxf4 21. Nxf4 Nxf4 22. gxf4 Bh3 23. Rfe1 Qg7+ 24. Kh1 Rxf4 25. Rg1 Rg4 26. Rae1 Kh8 27. Ng5 Qf6 28. Qe3 Bg2+ 29. Rxg2 Rxg2 30. Kxg2 Rg8 31. h4 h6 32. Qe6 Qxe6 33. Rxe6 hxg5 34. Rh6+ Kg7 35. hxg5 Kf8 36. g6 Ke7 37. Rh7+ Kd8 38. Rh6 Ke7 39. Rh7+ Kd8 40. Rh6 Ke7 1/2-1/2

[Event "GUA-ch Maestros2"]
[Site "Guatemala City"]
[Date "1982.??.??"]
[Round "?"]
[White "Deras Diaz, Gonzalo"]
[Black "Juarez Flores, Gustavo Enrique"]
[Result "1/2-1/2"]
[ECO "A07"]
[BlackElo "2275"]
[PlyCount "30"]
[EventDate "1982.??.??"]
[EventType "tourn"]
[EventRounds "18"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 c6 3. Bg2 Bf5 4. 0-0 e6 5. d3 Nf6 6. Nbd2 Nbd7 7. Re1 Be7 8. e4 dxe4 9. dxe4 Bg6 10. Qe2 0-0 11. e5 Nd5 12. Ne4 Nc5 13. Nxc5 Bxc5 14. c3 h6 15. a3 a5 1/2-1/2

[Event "GUA-ch Maestros1"]
[Site "Guatemala City"]
[Date "1982.??.??"]
[Round "2"]
[White "Deras Diaz, Gonzalo"]
[Black "Juarez Flores, Jorge Guillermo"]
[Result "1/2-1/2"]
[ECO "C10"]
[BlackElo "2245"]
[PlyCount "20"]
[EventDate "1982.??.??"]
[EventType "tourn"]
[EventRounds "22"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Nxf6+ Nxf6 7. Bg5 Be7 8. Bc4 0-0 9. Qe2 b6 10. 0-0-0 Bb7 1/2-1/2

[Event "GUA-ch Maestros1"]
[Site "Guatemala City"]
[Date "1982.??.??"]
[Round "6"]
[White "Deras Diaz, Gonzalo"]
[Black "Juarez Flores, Jorge Guillermo"]
[Result "1/2-1/2"]
[ECO "C69"]
[BlackElo "2245"]
[PlyCount "26"]
[EventDate "1982.??.??"]
[EventType "tourn"]
[EventRounds "22"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. 0-0 f6 6. d4 Bg4 7. c3 Qd7 8. Be3 Bd6 9. Nbd2 Nh6 10. dxe5 fxe5 11. h3 Bxf3 12. Qxf3 Nf7 13. Rad1 Qe6 1/2-1/2

[Event "GUA-ch Maestros2"]
[Site "Guatemala City"]
[Date "1982.??.??"]
[Round "?"]
[White "Deras Diaz, Gonzalo"]
[Black "Juarez Flores, Jorge Guillermo"]
[Result "1/2-1/2"]
[ECO "A09"]
[BlackElo "2245"]
[PlyCount "17"]
[EventDate "1982.??.??"]
[EventType "tourn"]
[EventRounds "18"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 c5 3. Bg2 Nc6 4. 0-0 e5 5. d3 Be7 6. c4 d4 7. e3 Bg4 8. exd4 Nxd4 9. h3 1/2-1/2

[Event "GUA-ch Maestros2"]
[Site "Guatemala City"]
[Date "1982.??.??"]
[Round "?"]
[White "Deras Diaz, Gonzalo"]
[Black "Juarez Flores, Jorge Guillermo"]
[Result "1/2-1/2"]
[ECO "C25"]
[BlackElo "2245"]
[PlyCount "21"]
[EventDate "1982.??.??"]
[EventType "tourn"]
[EventRounds "18"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. g3 g6 2. Bg2 Bg7 3. e4 e5 4. Nc3 Nc6 5. d3 d6 6. Nh3 f5 7. f4 Nge7 8. 0-0 0-0 9. Be3 Nd4 10. Nf2 Rb8 11. Bh3 1/2-1/2

[Event "GUA-ch Maestros1"]
[Site "Guatemala City"]
[Date "1982.??.??"]
[Round "?"]
[White "Deras Diaz, Gonzalo"]
[Black "Juarez Flores, Roberto Alfonso"]
[Result "1/2-1/2"]
[ECO "C42"]
[BlackElo "2230"]
[PlyCount "16"]
[EventDate "1982.??.??"]
[EventType "tourn"]
[EventRounds "22"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Qe2 Qe7 6. d3 Nf6 7. Bg5 Nbd7 8. Qxe7+ Bxe7 1/2-1/2

[Event "GUA-ch Maestros2"]
[Site "Guatemala City"]
[Date "1982.??.??"]
[Round "?"]
[White "Deras Diaz, Gonzalo"]
[Black "Juarez Flores, Roberto Alfonso"]
[Result "1/2-1/2"]
[ECO "B34"]
[BlackElo "2230"]
[PlyCount "11"]
[EventDate "1982.??.??"]
[EventType "tourn"]
[EventRounds "18"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 1/2-1/2

[Event "GUA-ch Maestros1"]
[Site "Guatemala City"]
[Date "1982.??.??"]
[Round "6"]
[White "Deras Diaz, Gonzalo"]
[Black "Perez, Fredy"]
[Result "1/2-1/2"]
[ECO "B19"]
[PlyCount "20"]
[EventDate "1982.??.??"]
[EventType "tourn"]
[EventRounds "22"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nf3 e6 7. h4 h6 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 Nd7 1/2-1/2

[Event "GUA-ch Maestros1"]
[Site "Guatemala City"]
[Date "1982.??.??"]
[Round "12"]
[White "Deras Diaz, Gonzalo"]
[Black "Reyes Najera, Carlos Antonio"]
[Result "0-1"]
[ECO "C25"]
[PlyCount "66"]
[EventDate "1982.??.??"]
[EventType "tourn"]
[EventRounds "22"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. g3 e5 2. Bg2 Nc6 3. Nc3 Nge7 4. e4 g6 5. d3 Bg7 6. f4 d6 7. Nf3 0-0 8. 0-0 Nd4 9. Be3 Bg4 10. Qd2 Nxf3+ 11. Bxf3 Bxf3 12. Rxf3 d5 13. exd5 exf4 14. Bxf4 Nxd5 15. Bh6 Bxh6 16. Qxh6 Nxc3 17. bxc3 Qd5 18. Rf4 f5 19. Rd4 Qc5 20. Kg2 Qxc3 21. Rh4 Qxc2+ 22. Kh3 Rf7 23. Qe3 Qc6 24. Re1 Rd8 25. d4 Qf6 26. Qb3 g5 27. Re6 g4+ 28. Kg2 Qxd4 29. Qxb7 c5 30. Qb3 c4 31. Qb5 Qd2+ 32. Kf1 Qd3+ 33. Re2 Re7 0-1

[Event "GUA-ch Maestros2"]
[Site "Guatemala City"]
[Date "1982.??.??"]
[Round "?"]
[White "Deras Diaz, Gonzalo"]
[Black "Reyes Najera, Carlos Antonio"]
[Result "1/2-1/2"]
[ECO "A49"]
[PlyCount "22"]
[EventDate "1982.??.??"]
[EventType "tourn"]
[EventRounds "18"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. b3 Nf6 2. Bb2 d6 3. d4 g6 4. Nf3 Bg7 5. g3 0-0 6. Bg2 e6 7. 0-0 Nbd7 8. c4 Qe7 9. Nc3 e5 10. Qd2 Re8 11. dxe5 dxe5 1/2-1/2

[Event "GUA-ch Maestros2"]
[Site "Guatemala City"]
[Date "1982.??.??"]
[Round "?"]
[White "Deras Diaz, Gonzalo"]
[Black "Reyes Najera, Carlos Antonio"]
[Result "1/2-1/2"]
[ECO "A48"]
[PlyCount "15"]
[EventDate "1982.??.??"]
[EventType "tourn"]
[EventRounds "18"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. Nf3 Nf6 2. b3 g6 3. d4 Bg7 4. g3 c5 5. Bb2 cxd4 6. Nxd4 0-0 7. Bg2 Re8 8. e4 1/2-1/2

[Event "GUA-ch Maestros2"]
[Site "Guatemala City"]
[Date "1982.??.??"]
[Round "?"]
[White "Deras Diaz, Gonzalo"]
[Black "Reyes Najera, Carlos Antonio"]
[Result "1/2-1/2"]
[ECO "A12"]
[PlyCount "27"]
[EventDate "1982.??.??"]
[EventType "tourn"]
[EventRounds "18"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. g3 d5 2. Bg2 Nf6 3. b3 Bf5 4. Bb2 e6 5. Nf3 Nbd7 6. 0-0 Be7 7. c4 c6 8. d3 h6 9. Nbd2 0-0 10. Qc2 Re8 11. Rac1 Bh7 12. Qb1 Bf8 13. Qa1 a5 14. a3 1/2-1/2

[Event "GUA-ch Maestros1"]
[Site "Guatemala City"]
[Date "1982.??.??"]
[Round "11"]
[White "Deras Diaz, Gonzalo"]
[Black "Rodas Martini, Pablo"]
[Result "0-1"]
[ECO "A04"]
[BlackElo "2300"]
[PlyCount "60"]
[EventDate "1982.??.??"]
[EventType "tourn"]
[EventRounds "22"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 c5 2. d3 Nc6 3. Nd2 g6 4. Ngf3 Bg7 5. g3 d6 6. Bg2 e5 7. 0-0 Nge7 8. Nc4 0-0 9. Ne3 f5 10. exf5 gxf5 11. Nh4 Be6 12. Bh3 Kh8 13. f4 exf4 14. Rxf4 Ng6 15. Nxg6+ hxg6 16. Rf1 Qd7 17. c3 Rae8 18. Qa4 f4 19. Bxe6 Qxe6 20. Rxf4 Rxf4 21. Qxf4 Ne5 22. d4 Nd3 23. Qh4+ Kg8 24. Bd2 cxd4 25. Ng4 Qe2 26. Nf6+ Bxf6 27. Qxf6 Ne5 28. Re1 Qxd2 29. Rxe5 Qc1+ 30. Kg2 Qxb2+ 0-1

[Event "GUA-ch Maestros2"]
[Site "Guatemala City"]
[Date "1982.??.??"]
[Round "?"]
[White "Deras Diaz, Gonzalo"]
[Black "Rodas Martini, Pablo"]
[Result "1/2-1/2"]
[ECO "B25"]
[BlackElo "2300"]
[PlyCount "13"]
[EventDate "1982.??.??"]
[EventType "tourn"]
[EventRounds "18"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. f4 e6 7. Nf3 1/2-1/2

[Event "GUA-ch Maestros1"]
[Site "Guatemala City"]
[Date "1982.??.??"]
[Round "1"]
[White "Guila Morales, Max Alfonso"]
[Black "Deras Diaz, Gonzalo"]
[Result "0-1"]
[ECO "A41"]
[PlyCount "106"]
[EventDate "1982.??.??"]
[EventType "tourn"]
[EventRounds "22"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. d4 g6 2. Nf3 Bg7 3. c4 d6 4. Nc3 Bg4 5. e3 Nf6 6. h3 Bxf3 7. Qxf3 c6 8. Bd2 Nbd7 9. Bd3 0-0 10. 0-0 e5 11. Rfe1 Qe7 12. d5 Nc5 13. e4 cxd5 14. exd5 Nxd3 15. Qxd3 Nd7 16. Ne4 h6 17. Bb4 Nc5 18. Nxc5 dxc5 19. Bc3 Qd6 20. Qg3 Rae8 21. Re2 f5 22. f3 Re7 23. Rae1 Rfe8 24. Qh4 b6 25. g4 g5 26. Qg3 b5 27. b3 bxc4 28. bxc4 Qa6 29. Ba1 f4 30. Qf2 Qxc4 31. Rc2 Qxd5 32. Rxc5 Qd3 33. Rc3 Qa6 34. Qc2 e4 35. Rc6 Qa5 36. Qc4+ Kh7 37. Rd1 exf3 38. Qc2+ Kg8 39. Qc4+ Kf8 40. Bxg7+ Kxg7 41. Qd4+ Qe5 42. Qxe5+ Rxe5 43. Rd7+ R8e7 44. Rcc7 Kf6 45. Rxa7 Rxd7 46. Rxd7 Re1+ 47. Kf2 Rh1 48. Kxf3 Rxh3+ 49. Ke4 Re3+ 50. Kd4 Ra3 51. Rd6+ Kg7 52. Rd7+ Kf8 53. Rd6 Rxa2 0-1

[Event "GUA-ch Maestros1"]
[Site "Guatemala City"]
[Date "1982.??.??"]
[Round "3"]
[White "Juarez Flores, Carlos Armando"]
[Black "Deras Diaz, Gonzalo"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "2295"]
[PlyCount "87"]
[EventDate "1982.??.??"]
[EventType "tourn"]
[EventRounds "22"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Nf3 Bg4 5. Be2 Nc6 6. Be3 e6 7. Qd2 Nge7 8. 0-0-0 0-0 9. Bh6 d5 10. Bxg7 Kxg7 11. h3 Bxf3 12. gxf3 Ng8 13. h4 h5 14. Kb1 Nh6 15. Qg5 dxe4 16. fxe4 Qxg5 17. hxg5 Ng8 18. d5 exd5 19. Nxd5 Rae8 20. f3 Re5 21. Rhg1 Rc8 22. Bf1 Nce7 23. Nc3 Nc6 24. f4 Ree8 25. f5 Ne5 26. f6+ Kf8 27. Bg2 Rcd8 28. Nb5 Rxd1+ 29. Rxd1 Nc6 30. Nxc7 Re5 31. Rd5 h4 32. b4 Nxf6 33. gxf6 g5 34. Bh3 Kg8 35. b5 Rxd5 36. exd5 Ne5 37. d6 Kh7 38. d7 Nxd7 39. Bxd7 Kg6 40. Nd5 Kh5 41. Ne3 Kg6 42. Ng4 Kh5 43. c4 b6 44. a4 1-0

[Event "GUA-ch Maestros1"]
[Site "Guatemala City"]
[Date "1982.??.??"]
[Round "7"]
[White "Juarez Flores, Carlos Armando"]
[Black "Deras Diaz, Gonzalo"]
[Result "1/2-1/2"]
[ECO "B06"]
[WhiteElo "2295"]
[PlyCount "76"]
[EventDate "1982.??.??"]
[EventType "tourn"]
[EventRounds "22"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. f4 c6 5. Nf3 Bg4 6. Be3 Qb6 7. Qd2 Bxf3 8. gxf3 Nf6 9. 0-0-0 Qa5 10. Bc4 b5 11. Bb3 b4 12. Ne2 Nbd7 13. Ng3 Qb5 14. Qd3 Qxd3 15. cxd3 Nb6 16. Kd2 a5 17. a4 0-0 18. f5 Rfc8 19. h4 c5 20. dxc5 dxc5 21. Rc1 Nfd7 22. Rc2 Ne5 23. Bxc5 Nxf3+ 24. Ke3 Rxc5 25. Rxc5 Bd4+ 26. Kxf3 Bxc5 27. Rc1 Rc8 28. fxg6 hxg6 29. Ne2 e5 30. Kg4 Kg7 31. h5 Be3 32. Rf1 Rc7 33. Rf3 Bc5 34. Rh3 Rd7 35. Rf3 Rc7 36. Kg5 Be7+ 37. Kg4 Bc5 38. hxg6 fxg6 1/2-1/2

[Event "GUA-ch Maestros2"]
[Site "Guatemala City"]
[Date "1982.??.??"]
[Round "?"]
[White "Juarez Flores, Carlos Armando"]
[Black "Deras Diaz, Gonzalo"]
[Result "1/2-1/2"]
[ECO "E01"]
[WhiteElo "2295"]
[PlyCount "20"]
[EventDate "1982.??.??"]
[EventType "tourn"]
[EventRounds "18"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 c5 4. Nf3 cxd4 5. Nxd4 d5 6. Bg2 e5 7. Nf3 d4 8. 0-0 Nc6 9. e3 Bc5 10. exd4 exd4 1/2-1/2

[Event "GUA-ch Maestros1"]
[Site "Guatemala City"]
[Date "1982.??.??"]
[Round "15"]
[White "Juarez Flores, Gustavo Enrique"]
[Black "Deras Diaz, Gonzalo"]
[Result "1-0"]
[ECO "B82"]
[WhiteElo "2275"]
[PlyCount "99"]
[EventDate "1982.??.??"]
[EventType "tourn"]
[EventRounds "22"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 c5 2. f4 e6 3. Nf3 Nc6 4. Nc3 d6 5. d4 cxd4 6. Nxd4 Nf6 7. Be3 a6 8. Qf3 Qc7 9. 0-0-0 Bd7 10. g4 Nxd4 11. Rxd4 d5 12. exd5 Nxd5 13. Nxd5 exd5 14. Rg1 Bc6 15. Qf2 Qa5 16. Kb1 0-0-0 17. Rd2 Re8 18. Bd4 Bc5 19. Bg2 Bxd4 20. Qxd4 f6 21. c3 Re7 22. Rgd1 Rhe8 23. g5 fxg5 24. fxg5 Re5 25. h4 Qb5 26. Bf3 Kb8 27. Qf4 Ka8 28. Rd4 Qc5 29. Qd2 Qb6 30. Bxd5 Re2 31. Qc1 Bxd5 32. Rxd5 Qf2 33. R5d4 R8e6 34. Ka1 Rb6 35. Rb4 Rc2 36. Qb1 Re6 37. Rf1 Qg2 38. Rg1 Qf2 39. Rf1 Qh2 40. Qd1 Rd2 41. Qb1 Rde2 42. a3 g6 43. Rd1 Rd2 44. Rf1 Rde2 45. Rd1 Rd2 46. Rf1 Rde2 47. Rf8+ Ka7 48. Qd3 Qg1+ 49. Ka2 Re8 50. Qd7 1-0

[Event "GUA-ch Maestros2"]
[Site "Guatemala City"]
[Date "1982.??.??"]
[Round "?"]
[White "Juarez Flores, Gustavo Enrique"]
[Black "Deras Diaz, Gonzalo"]
[Result "1/2-1/2"]
[ECO "B15"]
[WhiteElo "2275"]
[PlyCount "7"]
[EventDate "1982.??.??"]
[EventType "tourn"]
[EventRounds "18"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 1/2-1/2

[Event "GUA-ch Maestros2"]
[Site "Guatemala City"]
[Date "1982.??.??"]
[Round "?"]
[White "Juarez Flores, Gustavo Enrique"]
[Black "Deras Diaz, Gonzalo"]
[Result "1/2-1/2"]
[ECO "B07"]
[WhiteElo "2275"]
[PlyCount "83"]
[EventDate "1982.??.??"]
[EventType "tourn"]
[EventRounds "18"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Bc4 Bg7 5. Qe2 c6 6. Bb3 e5 7. Nf3 Qe7 8. h3 0-0 9. dxe5 dxe5 10. Bg5 Nbd7 11. 0-0-0 Nc5 12. Qe3 Nxb3+ 13. axb3 b5 14. Nh2 a5 15. Ng4 Qe6 16. Bxf6 Bxf6 17. Qf4 Be7 18. Qxe5 h5 19. Qxe6 Bxe6 20. Ne5 Rfc8 21. f4 a4 22. bxa4 b4 23. Ne2 Rxa4 24. Nd4 Bc5 25. Nef3 Rd8 26. b3 Ra1+ 27. Kb2 Bxd4+ 28. Rxd4 Rxd4 29. Rxa1 Rxe4 30. Ng5 Re2 31. Nxe6 Rxe6 32. g4 hxg4 33. hxg4 Re4 34. Rf1 Kg7 35. Kc1 Rd4 36. Rf3 c5 37. c3 bxc3 38. Kc2 Kf6 39. Kxc3 Ke6 40. f5+ gxf5 41. Rxf5 Rxg4 42. Rxc5 1/2-1/2

[Event "GUA-ch Maestros1"]
[Site "Guatemala City"]
[Date "1982.??.??"]
[Round "13"]
[White "Juarez Flores, Jorge Guillermo"]
[Black "Deras Diaz, Gonzalo"]
[Result "1/2-1/2"]
[ECO "B45"]
[WhiteElo "2245"]
[PlyCount "30"]
[EventDate "1982.??.??"]
[EventType "tourn"]
[EventRounds "22"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Ndb5 Bb4 7. Nd6+ Ke7 8. Bf4 e5 9. Nf5+ Kf8 10. Bg5 d5 11. Bxf6 Qxf6 12. Qxd5 Bxf5 13. exf5 Rd8 14. Qe4 Rd4 15. Qe3 Qxf5 1/2-1/2

[Event "GUA-ch Maestros2"]
[Site "Guatemala City"]
[Date "1982.??.??"]
[Round "?"]
[White "Juarez Flores, Jorge Guillermo"]
[Black "Deras Diaz, Gonzalo"]
[Result "1/2-1/2"]
[ECO "E91"]
[WhiteElo "2245"]
[PlyCount "42"]
[EventDate "1982.??.??"]
[EventType "tourn"]
[EventRounds "18"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 Bg4 7. 0-0 Nc6 8. d5 Bxf3 9. Bxf3 Na5 10. Be2 c5 11. a3 Nd7 12. Qc2 a6 13. Rb1 b5 14. b3 bxc4 15. bxc4 Qc7 16. Bd2 Rfb8 17. Qa4 Rxb1 18. Rxb1 Rb8 19. Rxb8+ Nxb8 20. Qe8+ Bf8 21. Bh6 Nd7 1/2-1/2

[Event "GUA-ch Maestros2"]
[Site "Guatemala City"]
[Date "1982.??.??"]
[Round "?"]
[White "Juarez Flores, Jorge Guillermo"]
[Black "Deras Diaz, Gonzalo"]
[Result "1/2-1/2"]
[ECO "E99"]
[WhiteElo "2245"]
[PlyCount "34"]
[EventDate "1982.??.??"]
[EventType "tourn"]
[EventRounds "18"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 e5 7. 0-0 Nc6 8. d5 Ne7 9. Ne1 Nd7 10. Be3 f5 11. f3 f4 12. Bf2 g5 13. Nd3 Nf6 14. c5 h5 15. cxd6 cxd6 16. Rc1 Rf7 17. Nb5 Ng6 1/2-1/2

[Event "GUA-ch Maestros1"]
[Site "Guatemala City"]
[Date "1982.??.??"]
[Round "?"]
[White "Juarez Flores, Roberto Alfonso"]
[Black "Deras Diaz, Gonzalo"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "2230"]
[PlyCount "10"]
[EventDate "1982.??.??"]
[EventType "tourn"]
[EventRounds "22"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. g3 g6 2. Bg2 Bg7 3. d3 d6 4. Nf3 Nf6 5. 0-0 0-0 1/2-1/2

[Event "GUA-ch Maestros1"]
[Site "Guatemala City"]
[Date "1982.??.??"]
[Round "?"]
[White "Perez, Fredy"]
[Black "Deras Diaz, Gonzalo"]
[Result "1/2-1/2"]
[ECO "A39"]
[PlyCount "18"]
[EventDate "1982.??.??"]
[EventType "tourn"]
[EventRounds "22"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. c4 c5 2. Nc3 Nf6 3. g3 g6 4. Bg2 Bg7 5. Nf3 0-0 6. 0-0 Nc6 7. d4 cxd4 8. Nxd4 Nxd4 9. Qxd4 d6 1/2-1/2

[Event "GUA-ch Maestros1"]
[Site "Guatemala City"]
[Date "1982.??.??"]
[Round "13"]
[White "Reyes Najera, Carlos Antonio"]
[Black "Deras Diaz, Gonzalo"]
[Result "1/2-1/2"]
[ECO "C41"]
[PlyCount "28"]
[EventDate "1982.??.??"]
[EventType "tourn"]
[EventRounds "22"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Nc3 Nbd7 5. Bc4 Be7 6. dxe5 dxe5 7. Qe2 0-0 8. 0-0 c6 9. Bb3 Qc7 10. h3 Nc5 11. Bg5 a5 12. Bxf6 Bxf6 13. Qe3 Be7 14. a3 a4 1/2-1/2

[Event "GUA-ch Maestros1"]
[Site "Guatemala City"]
[Date "1982.??.??"]
[Round "19"]
[White "Reyes Najera, Carlos Antonio"]
[Black "Deras Diaz, Gonzalo"]
[Result "1-0"]
[ECO "E44"]
[PlyCount "45"]
[EventDate "1982.??.??"]
[EventType "tourn"]
[EventRounds "22"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Nge2 Bb7 6. a3 Be7 7. d5 0-0 8. Ng3 Re8 9. Be2 d6 10. 0-0 Nbd7 11. e4 Bf8 12. f3 a5 13. Be3 g6 14. dxe6 fxe6 15. f4 Bg7 16. Kh1 Bh6 17. e5 dxe5 18. fxe5 Bxe3 19. exf6 Rf8 20. Bf3 Nc5 21. Bxb7 Qxd1 22. Nxd1 Bd4 23. Bxa8 1-0

[Event "GUA-ch Maestros2"]
[Site "Guatemala City"]
[Date "1982.??.??"]
[Round "?"]
[White "Reyes Najera, Carlos Antonio"]
[Black "Deras Diaz, Gonzalo"]
[Result "1/2-1/2"]
[ECO "B10"]
[PlyCount "31"]
[EventDate "1982.??.??"]
[EventType "tourn"]
[EventRounds "18"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 c6 2. d3 d5 3. Nd2 g6 4. g3 Bg7 5. Bg2 e5 6. Ngf3 Ne7 7. 0-0 0-0 8. Re1 Bg4 9. h3 Bxf3 10. Nxf3 Nd7 11. Bd2 Re8 12. Nh2 dxe4 13. dxe4 Nc5 14. Qe2 Ne6 15. c3 Qc7 16. Rad1 1/2-1/2

[Event "GUA-ch Maestros2"]
[Site "Guatemala City"]
[Date "1982.??.??"]
[Round "?"]
[White "Reyes Najera, Carlos Antonio"]
[Black "Deras Diaz, Gonzalo"]
[Result "1-0"]
[ECO "E62"]
[PlyCount "59"]
[EventDate "1982.??.??"]
[EventType "tourn"]
[EventRounds "18"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. g3 d6 5. Bg2 0-0 6. Nf3 c6 7. 0-0 Bf5 8. h3 Ne4 9. Nh4 Nxc3 10. bxc3 Be6 11. Rb1 Bxc4 12. Rxb7 Ba6 13. Rb4 d5 14. Re1 Nd7 15. e4 Nb6 16. e5 f6 17. f4 fxe5 18. dxe5 e6 19. Nf3 c5 20. Rb2 Nc4 21. Rf2 Qd7 22. h4 Rab8 23. h5 gxh5 24. f5 exf5 25. e6 Qe7 26. Ng5 d4 27. Qxh5 h6 28. Nf7 Rb1 29. Qxf5 Ne3 30. Qxb1 1-0

[Event "GUA-ch Maestros2"]
[Site "Guatemala City"]
[Date "1982.??.??"]
[Round "?"]
[White "Rodas Martini, Pablo"]
[Black "Deras Diaz, Gonzalo"]
[Result "1/2-1/2"]
[ECO "A37"]
[WhiteElo "2300"]
[PlyCount "16"]
[EventDate "1982.??.??"]
[EventType "tourn"]
[EventRounds "18"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. Nf3 g6 2. g3 Bg7 3. Bg2 c5 4. c4 Nc6 5. Nc3 Rb8 6. Rb1 Nf6 7. a3 0-0 8. 0-0 a6 1/2-1/2

[Event "GUA-ch Maestros"]
[Site "Massy"]
[Date "1981.??.??"]
[Round "1"]
[White "Barreno Anleu, Hugo Augusto"]
[Black "Deras Diaz, Gonzalo"]
[Result "1/2-1/2"]
[ECO "B34"]
[PlyCount "28"]
[EventDate "1981.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. c3 cxd4 5. Nxd4 d6 6. Be3 Nf6 7. Nd2 0-0 8. Bd3 Nc6 9. 0-0 d5 10. exd5 Nxd5 11. Nxc6 Nxe3 12. Nxd8 Nxd1 13. Rfxd1 Rxd8 14. Nc4 Be6 1/2-1/2

[Event "GUA-ch Maestros"]
[Site "Massy"]
[Date "1981.??.??"]
[Round "2"]
[White "Deras Diaz, Gonzalo"]
[Black "Batres O, Francisco"]
[Result "1/2-1/2"]
[ECO "B43"]
[PlyCount "28"]
[EventDate "1981.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 Nf6 7. 0-0 b5 8. Bf3 Qe5 9. Re1 Nc6 10. Nde2 g5 11. Nd5 Bb7 12. Nxf6+ Qxf6 13. e5 Qxe5 14. Ng3 Qc7 1/2-1/2

[Event "GUA-ch Maestros"]
[Site "Massy"]
[Date "1981.??.??"]
[Round "4"]
[White "Deras Diaz, Gonzalo"]
[Black "Juarez Flores, Gustavo Enrique"]
[Result "1-0"]
[ECO "B31"]
[PlyCount "89"]
[EventDate "1981.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. c3 Bg7 5. d4 cxd4 6. cxd4 a6 7. Bc4 b5 8. Bb3 Bb7 9. 0-0 Na5 10. Nc3 Nf6 11. e5 Ne4 12. Bxf7+ Kxf7 13. Nxe4 Rf8 14. Nfg5+ Kg8 15. Qg4 Nc4 16. h4 Qe8 17. Nc5 Bc6 18. b3 Nb6 19. f4 Nd5 20. Bd2 a5 21. Rac1 b4 22. Nce6 Rf5 23. Nxg7 Kxg7 24. Qe2 h5 25. g4 hxg4 26. Qxg4 Qh8 27. Ne4 Ne3 28. Bxe3 Bxe4 29. d5 Bxd5 30. e6 Qg8 31. Bd4+ Kh7 32. exd7 Qe6 33. h5 Rxh5 34. Qxe6 Bxe6 35. Rfe1 Rd8 36. Rxe6 Rxd7 37. Bc5 Rf5 38. Rxe7+ Rxe7 39. Bxe7 Rxf4 40. Rc5 Re4 41. Bg5 a4 42. bxa4 Re2 43. Rb5 Rxa2 44. Rxb4 Kg7 45. Rb7+ 1-0

[Event "GUA-ch Maestros"]
[Site "Massy"]
[Date "1981.??.??"]
[Round "3"]
[White "Reyes Najera, Carlos Antonio"]
[Black "Deras Diaz, Gonzalo"]
[Result "1/2-1/2"]
[ECO "A31"]
[PlyCount "26"]
[EventDate "1981.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. c4 c5 2. Nc3 Nf6 3. Nf3 b6 4. e4 d6 5. d4 cxd4 6. Nxd4 e6 7. Be2 Bb7 8. f3 Be7 9. Be3 0-0 10. 0-0 a6 11. Rc1 Nbd7 12. Qd2 Re8 13. Rfd1 Qc8 1/2-1/2

[Event "GUA-ch Maestros"]
[Site "Massy"]
[Date "1981.??.??"]
[Round "5"]
[White "Rodas Martini, Pablo"]
[Black "Deras Diaz, Gonzalo"]
[Result "1/2-1/2"]
[ECO "A30"]
[WhiteElo "2250"]
[PlyCount "108"]
[EventDate "1981.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GUA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. c4 c5 2. Nc3 Nf6 3. Nf3 g6 4. g3 b6 5. Bg2 Bb7 6. 0-0 Bg7 7. d4 cxd4 8. Nxd4 Bxg2 9. Kxg2 Qc7 10. b3 d5 11. Nxd5 Nxd5 12. cxd5 Qc5 13. Be3 Qxd5+ 14. f3 0-0 15. Rc1 Rd8 16. Nf5 Qxd1 17. Rfxd1 Re8 18. Nxe7+ Kf8 19. Nd5 Na6 20. Kf1 Nb4 21. Bf4 Nxd5 22. Rxd5 Red8 23. Rxd8+ Rxd8 24. e4 a5 25. Ke2 a4 26. Bc7 axb3 27. Bxd8 bxa2 28. Bxb6 a1Q 29. Rxa1 Bxa1 30. Kd3 Bb2 31. Bd4 Bc1 32. Kc4 Ke7 33. Kd5 f6 34. f4 g5 35. Bc5+ Kf7 36. f5 Bd2 37. Bd4 Ba5 38. Kd6 h5 39. Be3 Bc3 40. Kd5 Bb2 41. Bd4 Ba3 42. Bc5 Bb2 43. Bd4 Ba3 44. Bc5 Bb2 45. Bd6 Bc3 46. e5 fxe5 47. Bxe5 Ba5 48. Bd4 Bd8 49. Ke4 Be7 50. Be5 g4 51. Bd4 Bg5 52. Be5 Be7 53. Kd5 Bd8 54. Bf4 Be7 1/2-1/2

[Event "Olympiad-22"]
[Site "Haifa"]
[Date "1976.11.04"]
[Round "10.2"]
[White "Feller, Joseph"]
[Black "Deras Diaz, Gonzalo"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2220"]
[PlyCount "61"]
[EventDate "1976.10.25"]
[EventType "team-swiss"]
[EventRounds "13"]
[EventCountry "ISR"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]
[WhiteTeam "Luxembourg"]
[BlackTeam "Guatemala"]
[WhiteTeamCountry "LUX"]
[BlackTeamCountry "GUA"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 cxd4 5. cxd4 Nc6 6. Nf3 Bg4 7. Nc3 Bxf3 8. gxf3 Qxd4 9. Qxd4 Nxd4 10. Nb5 Ne6 11. f4 g6 12. Bg2 Rb8 13. Be3 Bg7 14. Bxa7 Rc8 15. Bxb7 Rc2 16. 0-0 Bxb2 17. Rab1 Nf6 18. a4 0-0 19. a5 Nxf4 20. Be3 Be5 21. a6 Ne2+ 22. Kh1 Ra2 23. a7 Ng4 24. Rb3 Nxh2 25. Re1 Nf4 26. Ra3 Rxa3 27. Nxa3 Nd3 28. Rd1 Nb2 29. Rb1 Ng4 30. Rc1 Nxe3 31. Rc8 1-0

[Event "Olympiad-22"]
[Site "Haifa"]
[Date "1976.11.02"]
[Round "8.2"]
[White "Deras Diaz, Gonzalo"]
[Black "Jimenez Molina, Juan Leon"]
[Result "0-1"]
[ECO "E94"]
[PlyCount "66"]
[EventDate "1976.10.25"]
[EventType "team-swiss"]
[EventRounds "13"]
[EventCountry "ISR"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]
[WhiteTeam "Guatemala"]
[BlackTeam "Costa Rica"]
[WhiteTeamCountry "GUA"]
[BlackTeamCountry "CRI"]

1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. Nf3 0-0 6. Be2 e5 7. 0-0 Nbd7 8. Rb1 a5 9. dxe5 dxe5 10. Bg5 c6 11. Qd6 Re8 12. Rfd1 Re6 13. Qd2 Qc7 14. b3 Bf8 15. Qb2 h6 16. Bxf6 Nxf6 17. a3 Rd6 18. b4 Rxd1+ 19. Rxd1 axb4 20. axb4 Be6 21. b5 Bc5 22. Ra1 Rxa1+ 23. Qxa1 Ng4 24. Nd1 Qb6 25. Nxe5 Bxf2+ 26. Kh1 Nxe5 27. Qxe5 Bd4 28. Qf4 Kg7 29. Qc1 Qa5 30. Qf4 Qe1+ 31. Qf1 Qxf1+ 32. Bxf1 Bg4 33. bxc6 bxc6 0-1

[Event "Olympiad-22"]
[Site "Haifa"]
[Date "1976.11.01"]
[Round "7.3"]
[White "Carrion, Marcelo"]
[Black "Deras Diaz, Gonzalo"]
[Result "1/2-1/2"]
[ECO "B89"]
[PlyCount "82"]
[EventDate "1976.10.25"]
[EventType "team-swiss"]
[EventRounds "13"]
[EventCountry "ISR"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]
[WhiteTeam "Dominican Rep"]
[BlackTeam "Guatemala"]
[WhiteTeamCountry "DOM"]
[BlackTeamCountry "GUA"]

1. e4 c5 2. Nf3 Nc6 3. Nc3 d6 4. d4 cxd4 5. Nxd4 Nf6 6. Bc4 e6 7. Be3 Be7 8. Qe2 0-0 9. 0-0-0 Nxd4 10. Rxd4 Qa5 11. Rg1 a6 12. g4 b5 13. Bb3 b4 14. Nb1 Bb7 15. f3 Nd7 16. Nd2 Nc5 17. Kb1 Qb6 18. g5 a5 19. Bc4 a4 20. f4 d5 21. exd5 exd5 22. Bxd5 Bxd5 23. Rxd5 b3 24. cxb3 Rad8 25. Bxc5 Bxc5 26. Rxd8 Rxd8 27. Rc1 Be3 28. Re1 Qg6+ 29. Ka1 Bc5 30. Ne4 Bb4 31. Rc1 axb3 32. a3 Bf8 33. Nc5 Bxc5 34. Rxc5 Qd6 35. Rc1 Qxf4 36. Re1 Rf8 37. Qe3 Qxh2 38. Qxb3 Qf2 39. Qe3 Qc2 40. Rc1 Qf5 41. Qc5 Qe4 1/2-1/2

[Event "Olympiad-22"]
[Site "Haifa"]
[Date "1976.10.31"]
[Round "6.3"]
[White "Goldenberg, Richard"]
[Black "Deras Diaz, Gonzalo"]
[Result "1-0"]
[ECO "B89"]
[PlyCount "39"]
[EventDate "1976.10.25"]
[EventType "team-swiss"]
[EventRounds "13"]
[EventCountry "ISR"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]
[WhiteTeam "France"]
[BlackTeam "Guatemala"]
[WhiteTeamCountry "FRA"]
[BlackTeamCountry "GUA"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 7. Be3 Be7 8. Qe2 Qa5 9. 0-0-0 0-0 10. Bb3 Nxd4 11. Bxd4 Bd7 12. Kb1 Bc6 13. f4 e5 14. Be3 Nxe4 15. Nxe4 Bxe4 16. Bd2 Bxc2+ 17. Bxc2 Qc7 18. Bc3 Bf6 19. Qd3 g6 20. Qxd6 1-0

[Event "Olympiad-22"]
[Site "Haifa"]
[Date "1976.10.27"]
[Round "3.3"]
[White "Deras Diaz, Gonzalo"]
[Black "Earle, M."]
[Result "1-0"]
[ECO "B53"]
[PlyCount "63"]
[EventDate "1976.10.25"]
[EventType "team-swiss"]
[EventRounds "13"]
[EventCountry "ISR"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]
[WhiteTeam "Guatemala"]
[BlackTeam "Papua New Guinea"]
[WhiteTeamCountry "GUA"]
[BlackTeamCountry "PNG"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Bb5 Bd7 6. Bxc6 Bxc6 7. c4 e5 8. Qd3 Nf6 9. Nc3 Be7 10. Bg5 0-0 11. 0-0 h6 12. Bxf6 Bxf6 13. Ne1 Qb6 14. Nc2 Rac8 15. b3 Rfd8 16. Rad1 Rd7 17. Ne3 Qa5 18. Ned5 Qd8 19. a4 g6 20. Qe3 Bg7 21. Qxa7 b5 22. Qe3 Bxd5 23. Nxd5 Rc5 24. axb5 f5 25. b4 Rxc4 26. Qb3 Rd4 27. Nf6+ Kh8 28. Nxd7 Qxd7 29. Rxd4 exd4 30. exf5 Qxf5 31. b6 d3 32. b7 1-0

[Event "Olympiad-22"]
[Site "Haifa"]
[Date "1976.10.26"]
[Round "2.3"]
[White "Deras Diaz, Gonzalo"]
[Black "Whetton, M."]
[Result "0-1"]
[ECO "A03"]
[PlyCount "80"]
[EventDate "1976.10.25"]
[EventType "team-swiss"]
[EventRounds "13"]
[EventCountry "ISR"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]
[WhiteTeam "Guatemala"]
[BlackTeam "Guernsey Jersey"]
[WhiteTeamCountry "GUA"]
[BlackTeamCountry "GCI"]

1. b3 Nf6 2. Bb2 c5 3. e3 d5 4. Bb5+ Nc6 5. f4 Bg4 6. Nf3 Rc8 7. h3 Bxf3 8. Qxf3 e6 9. 0-0 Be7 10. d3 0-0 11. Bxc6 Rxc6 12. Nd2 b5 13. c4 Qb6 14. Rad1 Rd8 15. f5 dxc4 16. dxc4 exf5 17. cxb5 Qxb5 18. Nc4 Rf8 19. Qxf5 Ra6 20. Qb1 Qb7 21. Be5 Qe4 22. Qb2 Nh5 23. Rd7 Bf6 24. Qe2 Bxe5 25. Qxh5 Rg6 26. Qf3 Qxf3 27. Rxf3 Bb8 28. Rf5 Rc6 29. Kf2 g6 30. Rfd5 Rf6+ 31. Ke2 Bg3 32. Rd2 a6 33. Kd3 Re8 34. Kc2 Ree6 35. R7d5 Rc6 36. Na5 Rc7 37. Kd3 Be1 38. Ke2 Bxd2 39. Rxd2 Kf8 40. Nc4 Ke7 0-1

[Event "Olympiad-22"]
[Site "Haifa"]
[Date "1976.10.25"]
[Round "1.3"]
[White "Mollekens, Roeland"]
[Black "Deras Diaz, Gonzalo"]
[Result "1-0"]
[ECO "B07"]
[PlyCount "81"]
[EventDate "1976.10.25"]
[EventType "team-swiss"]
[EventRounds "13"]
[EventCountry "ISR"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]
[WhiteTeam "Belgium"]
[BlackTeam "Guatemala"]
[WhiteTeamCountry "BEL"]
[BlackTeamCountry "GUA"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. 0-0 Bg7 5. Re1 d6 6. c3 Nf6 7. d4 cxd4 8. cxd4 0-0 9. Nc3 Bg4 10. Be3 Nd7 11. Be2 Bxf3 12. Bxf3 e5 13. Ne2 Kh8 14. d5 Ne7 15. Rc1 f5 16. Bg5 Nf6 17. Nc3 a6 18. Qd2 f4 19. Rc2 h6 20. Bxf6 Rxf6 21. Bg4 h5 22. Be6 g5 23. f3 g4 24. fxg4 hxg4 25. Bxg4 Qe8 26. Qf2 Rh6 27. Rec1 Bf6 28. Ne2 Qg6 29. Qf3 Qe8 30. Rc7 Qb5 31. b3 Rg8 32. h3 Rh4 33. g3 Rh6 34. gxf4 Ng6 35. Rc8 exf4 36. Rxg8+ Kxg8 37. Nxf4 Qb6+ 38. Kh1 Ne5 39. Rc8+ Kf7 40. Bh5+ Ke7 41. Qc3 1-0

